Winnower



2 Sheets-Sheet l. L. S. INGRAHAM.

Grain Winnower.

No. 9,920. Patented Aug. 9, 1853 N. PFIEHS. pmu-Lmw i har. Wnsblnlon, u.a

2 Sheets-Sheet 2 L S. INGRAHAM.

Grain Winnower.

No. 9.920. r r Patented Aug. 9'. 1853.

- N. PETERS PwKo-Lflhvgnphen Walm tan. D. C.

UNITED STATES PATENT OFFICE.

LEWIS S. INGRAHAM, OF GUYAHOGA FALLS, OHIO.

WINNOWER.

Z0 a whom it may concern Be it known that I, Lnwrs S. INGRAHAM, ofCuyahoga Falls, in the county of Summit and State of Ohio, have inventedcertain new and useful Improvements in Machines for Separating Grain,Gold, 620.; and I do hereby declare that the same are described andrepresented in the following specification and drawings.

The nature of my invention consists in making the screen or screensstair-shaped or fluted, and vibrating them perpendicularly or diagonallyinstead of traversing or shaking them horizontally as heretofore; sothat the grain falls successively from one stair or flute to the next,until it passes over all the stairs or flutes in the screen; also inusing it in combination with a plain screen which may be used eitherbefore or after the stair screen, as may be preferred.

To enable others skilled in the arts to make and use my improvements Iwill proceed to describe their construction and use referring to thedrawings above mentioned, in which the same letters indicate like partsin each of the figures.

Figure 1 is an isometrical view of the machine with my improvements.Fig. 2 is a sectional elevation representing the machine as cut throughthe center perpendicularly.

A A the posts connected together by the girts B B and C C so as to forma frame as represented, to which frame I fasten the boards D D made inthe form represented so as to form the ends of the fan box and the sidesof the trough E. I make the circular portion of the fan box of sheetmetal bent in the form shown at F, with an opening G for the grain tofall through, and an opening H in the bottom of the trough E (which isalso made of sheet metal) for the escape of the small seeds separatedfrom the grain. There is an end board I and two side boards J J fastenedto the posts and a bottom board K fastened between the boards J J,between which boards I arrange a traversing shoe L with a screen M in itto separate all the straw and refuse matter from the grain which passesfreely through it; while the refuse matter passes over the screen andfalls out of the machine at I as the shoe is traversed by the levers O Ofastened to the boards D so as to vibrate Specification of LettersPatent No. 9,920, dated August 9, 1853.

freely when acted upon by the cams P, P, upon the shaft Q, which shaftturns in the holes made for it in the girts B. The levers O O areconnected to the shoe L by the rod R which passes through the levers andthe bottom of the shoe and traverses in slots in the boards J J. Thelower end of the shoe L, is supported by two braces like S,t-he upperend catching into the notch T in the bottom of the shoe and the lowerend in the notch U in the cleat W, fastened to the board D so that theupper ends of the braces are vibrated by the shoe L so as to Vibrate thestair screen X fastened to the underside of the braces S as represented.The cleat W is hollowed out on the lower slide to receive the curvedmetal plate Y upon which the lower end of the screen X rests and overwhich the grain passes as it falls into the fan blast. There are twometallic supports or bars Z Z fastened to the boards D across theapertures a a with holes in them in which the shaft 6 of the fan 0 turnsas it is operated by the belt 03 from the pulley 6 upon the shaft Q tothe pulley f on the shaft 5 as represented. There is a gate 9 fitted totraverse in grooves in the boards J J which gate may be adjusted so asto regulate the .quantity of grain fed onto the screen M.

The machine having been constructed and completed as above described,the grain to be cleaned is put onto the shoe L which is vibrated and itpasses under the gate 9 onto the screen M which retains the straw,

etc., and all matter larger than the grain which passes through thescreen and falls onto the inclined board K, while the straw, etc.,passes off at the lower end of the shoe and falls out of the machine atN; while the grain descends from the inclined board K onto the stairscreen S which permits the seed of weeds and any matter smaller than thegrain to pass through it into the trough E and out of the opening H;while the screen is agitated; and while it is fanned by the blast fromthe fan' 0, and the grain descends from stair to stair, of the screen Xand'passes over the curved plate Y into the blast from the fan whichblows out every thing lighter than the grain and imperfect kernels;while the good grain descends through the blast and passes out of themachine at G.

lhe machine may be operated by a crank In testimony whereof, I havehereunto 0r pulleys applied to the shaft Q. signed my name beforetwosubscribing Wit- What I claim as my invention and denesses. sire tosecure by Letters Patent is, LEWIS S. INGRAHAM. 5 The stair or flutedscreen X, constructed Witnesses:

and operated substantially as described for S. C. DONN,

the purposes set forth. H. RATCLIFF.

